﻿using System;
using System.Collections.Generic;
using System.Text;

namespace _5
{
    class Math
    {

        public int a1;
        public int b1;
        public int c1;

        public Math(int a1,int b1,int c1)
        {
            this.a1 = a1;
            this.b1 = b1;
            this.c1 = c1;
        
        }

       public static void Add(int a1,int b1)
        {
            Console.WriteLine("a1+b1={0}",a1+b1);
        }

      
       public static void Add(int a1,int b1,int c1)
        {
            Console.WriteLine("a1+b1+c1={1}",a1+b1+c1);
        }

       
        
    }
}
